“synchronous digital hierarchy network”的概念、定义、翻译、参考文献-科学参考

单词	synchronous digital hierarchy network
释义	synchronous digital hierarchy network Encyclopedia 工学传送网释 synchronous digital hierarchy network同步数字传送网基于同步数字传送体系组建的传送网。由一些同步数字传送网元组成，在光纤上进行同步数字信息传输、复用和交叉连接的网络，实现网络管理、实时业务监控、不同厂商设备间的互通等功能，提高网络资源利用率。
随便看	attention control training attention deficit disorder attention deficit hyperactive disorder attention deficit hyperactivity disorder attention development attention economy attention limit attention span attenuated live vaccine attenuated rabbit-adapted classical swine fever vaccine attenuated total reflectance Fourier transform infrared attenuated total reflection attenuated total reflection (ATR) attenuated total reflection, ATR attenuated total reflection infrared spectrometry attenuated total reflection infrared spectrometry (ATRIR) attenuated total reflection spectroscopy attenuated vaccine attenuation attenuation coefficient attenuation constant attenuation curve attenuation distance attenuation distortion attenuation factor

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